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POLICYHOLDER ACCOUNT BALANCES - Guaranteed Minimum Interest Rates (Details)
$ in Millions
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 5,254 $ 5,308
VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 4,448 4,518
GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 959 981
GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 293 303
EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,574 2,652
SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 36,911 33,613
EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 11,704 11,794
Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 683 702
At Guaranteed Minimum | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,720 3,796
At Guaranteed Minimum | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 4,226 4,415
At Guaranteed Minimum | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 959 981
At Guaranteed Minimum | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 293 303
At Guaranteed Minimum | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,156 2,590
At Guaranteed Minimum | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 36,911 33,613
At Guaranteed Minimum | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 6,868 7,069
At Guaranteed Minimum | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 260 $ 266
1 Basis Point - 50 Basis Points Above | Minimum    
Policyholder Account Balance [Line Items]    
Above guaranteed minimum crediting rate 0.0001 0.0001
1 Basis Point - 50 Basis Points Above | Maximum    
Policyholder Account Balance [Line Items]    
Above guaranteed minimum crediting rate 0.0050 0.0050
1 Basis Point - 50 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 777 $ 854
1 Basis Point - 50 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 207 93
1 Basis Point - 50 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1 Basis Point - 50 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1 Basis Point - 50 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 19 0
1 Basis Point - 50 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1 Basis Point - 50 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 401 28
1 Basis Point - 50 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 292 $ 302
51 Basis Points - 150 Basis Points Above | Minimum    
Policyholder Account Balance [Line Items]    
Above guaranteed minimum crediting rate 0.0051 0.0051
51 Basis Points - 150 Basis Points Above | Maximum    
Policyholder Account Balance [Line Items]    
Above guaranteed minimum crediting rate 0.0150 0.0150
51 Basis Points - 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 644 $ 610
51 Basis Points - 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 9
51 Basis Points - 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
51 Basis Points - 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
51 Basis Points - 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 160 62
51 Basis Points - 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
51 Basis Points - 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 1,259 1,585
51 Basis Points - 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 124 $ 127
Greater Than 150 Basis Points Above | Minimum    
Policyholder Account Balance [Line Items]    
Above guaranteed minimum crediting rate 0.0150 0.0150
Greater Than 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 113 $ 48
Greater Than 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 2 1
Greater Than 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater Than 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater Than 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 239 0
Greater Than 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater Than 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,176 3,112
Greater Than 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 7 7
0.00% - 1.50% | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 5 $ 6
0.00% - 1.50% | UL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | UL | Protection Solutions | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 87 $ 78
0.00% - 1.50% | VUL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | VUL | Protection Solutions | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 387 $ 386
0.00% - 1.50% | GMxB Legacy | Legacy Segment | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | GMxB Legacy | Legacy Segment | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 279 $ 289
0.00% - 1.50% | GMxB Core | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | GMxB Core | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 329 $ 345
0.00% - 1.50% | EI | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | EI | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 31,090 $ 28,086
0.00% - 1.50% | SCS | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | SCS | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,653 $ 3,592
0.00% - 1.50% | EG | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | EG | Group Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 430 $ 445
0.00% - 1.50% | Momentum | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
0.00% - 1.50% | Momentum | Group Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
0.00% - 1.50% | At Guaranteed Minimum | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 0 $ 0
0.00% - 1.50% | At Guaranteed Minimum | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 23 30
0.00% - 1.50% | At Guaranteed Minimum | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 387 386
0.00% - 1.50% | At Guaranteed Minimum | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 279 289
0.00% - 1.50% | At Guaranteed Minimum | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 35 345
0.00% - 1.50% | At Guaranteed Minimum | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 31,090 28,086
0.00% - 1.50% | At Guaranteed Minimum | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 58 109
0.00% - 1.50% | At Guaranteed Minimum | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 15
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 51 40
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 57 5
0.00% - 1.50% | 1 Basis Point - 50 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 291 301
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 4 5
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 11 7
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 55 0
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 362 366
0.00% - 1.50% | 51 Basis Points - 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 119 122
0.00% - 1.50% | Greater Than 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 1 1
0.00% - 1.50% | Greater Than 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 2 1
0.00% - 1.50% | Greater Than 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | Greater Than 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | Greater Than 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 239 0
0.00% - 1.50% | Greater Than 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
0.00% - 1.50% | Greater Than 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,176 3,112
0.00% - 1.50% | Greater Than 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 7 7
1.51% - 2.50% | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 1,034 $ 1,030
1.51% - 2.50% | UL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | UL | Protection Solutions | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 540 $ 538
1.51% - 2.50% | VUL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | VUL | Protection Solutions | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 539 $ 560
1.51% - 2.50% | GMxB Legacy | Legacy Segment | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | GMxB Legacy | Legacy Segment | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 14 $ 14
1.51% - 2.50% | GMxB Core | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | GMxB Core | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 46 $ 46
1.51% - 2.50% | EI | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | EI | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 5,821 $ 5,527
1.51% - 2.50% | SCS | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | SCS | Individual Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 910 $ 902
1.51% - 2.50% | EG | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | EG | Group Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 175 $ 179
1.51% - 2.50% | Momentum | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
1.51% - 2.50% | Momentum | Group Retirement | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
1.51% - 2.50% | At Guaranteed Minimum | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 155 $ 181
1.51% - 2.50% | At Guaranteed Minimum | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 384 485
1.51% - 2.50% | At Guaranteed Minimum | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 539 560
1.51% - 2.50% | At Guaranteed Minimum | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 14 14
1.51% - 2.50% | At Guaranteed Minimum | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 46
1.51% - 2.50% | At Guaranteed Minimum | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 5,821 5,527
1.51% - 2.50% | At Guaranteed Minimum | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 11 11
1.51% - 2.50% | At Guaranteed Minimum | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 174 178
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 127 197
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 156 53
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 2 2
1.51% - 2.50% | 1 Basis Point - 50 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 1 1
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 640 605
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 46 0
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 897 889
1.51% - 2.50% | 51 Basis Points - 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 112 47
1.51% - 2.50% | Greater Than 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
1.51% - 2.50% | Greater Than 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 4,215 $ 4,272
Greater than 2.50% | UL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,821 $ 3,902
Greater than 2.50% | VUL | Protection Solutions | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 33 $ 35
Greater than 2.50% | GMxB Legacy | Legacy Segment | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 0 $ 0
Greater than 2.50% | GMxB Core | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 2,199 $ 2,261
Greater than 2.50% | EI | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 0 $ 0
Greater than 2.50% | SCS | Individual Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 7,141 $ 7,300
Greater than 2.50% | EG | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 78 $ 78
Greater than 2.50% | Momentum | Group Retirement | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Greater than 2.50% | At Guaranteed Minimum | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,565 $ 3,615
Greater than 2.50% | At Guaranteed Minimum | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,819 3,900
Greater than 2.50% | At Guaranteed Minimum | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 33 35
Greater than 2.50% | At Guaranteed Minimum | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | At Guaranteed Minimum | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,121 2,199
Greater than 2.50% | At Guaranteed Minimum | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | At Guaranteed Minimum | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 6,799 6,949
Greater than 2.50% | At Guaranteed Minimum | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 73 73
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 650 657
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 19 0
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 342 21
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 2 2
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 59 62
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 330
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 5 5
Greater than 2.50% | Greater Than 150 Basis Points Above | UL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | VUL | Protection Solutions    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | GMxB Legacy | Legacy Segment    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | GMxB Core | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | EI | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | SCS | Individual Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | EG | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Greater than 2.50% | Greater Than 150 Basis Points Above | Momentum | Group Retirement    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 0 $ 0